名词
中文翻译：难溶性营养物
同义词：
['difficulty-solubilizing nutrient', 'insoluble nutrient']
例句：
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1. The soil isrich in nutrients that are difficult to extract from the ground.
土壤富含难以从地面提取的养分。
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2. The plant requires a specific type of nutrient to grow well.
植物需要特定类型的养分才能良好生长。
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3.The farmer applied a solution of fertilizer to the soil to improve its nutrient content.
农民向土壤施用肥料溶液，以改善其养分含量。